Marine Forecast
Issued 06:30 PM EST 19 December 2025
Tonight and Saturday.
Gale warning in effect.
Wind northeast 10 knots increasing to southeast 25 near midnight
and to south 35 late overnight. Wind diminishing to south 30 early Saturday
morning then veering to southwest 25 near noon Saturday. Wind increasing to west
40 Saturday afternoon then veering to northwest 35 Saturday
evening.
Scattered flurries changing to snow overnight then to
flurries Saturday afternoon. Visibility 1 mile or less in
precipitation.
Freezing spray warning in effect.
Freezing spray beginning Saturday evening.
Strong wind warning program has ended for the season.
Winds
Issued 06:30 PM EST 19 December 2025
Tonight and Saturday.
Gale warning in effect.
Wind northeast 10 knots increasing to southeast 25 near midnight
and to south 35 late overnight. Wind diminishing to south 30 early Saturday
morning then veering to southwest 25 near noon Saturday. Wind increasing to west
40 Saturday afternoon then veering to northwest 35 Saturday
evening.
Strong wind warning program has ended for the season.
Waves
Issued 06:30 PM EST 19 December 2025
Tonight and Saturday.
Waves 0.5 to 1 metre building to 2 to 3 late overnight and to 3
to 4 Saturday afternoon.
Weather & Visibility
Issued 06:30 PM EST 19 December 2025
Tonight and Saturday.
Scattered flurries changing to snow overnight then to
flurries Saturday afternoon. Visibility 1 mile or less in
precipitation.
Freezing Spray
Issued 06:30 PM EST 19 December 2025
Tonight and Saturday.
Freezing spray warning in effect.
Freezing spray beginning Saturday evening.
Ice Forecasts
Issued 12:00 PM EDT 16 May 2025 Forecasts have ended for the season.
Warnings (In effect)
Eastern Lake Superior
Issued 10:15 PM EST 19 December 2025'Gale' force winds of 34 to 47 knots are occurring or expected to occur in this marine area. Watch for updated statements. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.
Eastern Lake Superior
Issued 10:15 PM EST 19 December 2025Moderate or severe freezing spray is occurring or expected to occur in this marine area. Please refer to the latest marine forecasts for further details and continue to monitor the situation through Canadian Coast Guard radio or Weatheradio stations.
Technical Marine Synopsis
Issued 6:30 PM EST 19 December 2025 Tonight and Saturday At 6:30 p.m. EST tonight departing low 974 mb located over central
Quebec.
At 6:30 p.m. EST tonight ridge located on a line north-south over
western Lake Superior.
By 6:30 p.m. EST Saturday ridge located on a line
northeast-southwest over the Eastern Seaboard.
At 6:30 p.m. EST tonight low 985 mb located over southwestern
Manitoba.
By 6:30 p.m. EST Saturday low 992 mb located northeast of Lake
Superior.